Device for measuring gas flow rate in supply pipe to burner, e.g. for heating molten glass, comprises calibrated orifice in pipe and pressure sensor upstream of orifice

A device for measuring the gas flow rate in a pipe supplying at least one burner comprises (a) a calibrated orifice in the gas supply pipe and (b) a device for determining the gas pressure in the tubing upstream of the orifice (a). An independent claim is included for a pressure measuring method usi...

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Bibliographische Detailangaben
1. Verfasser:	GIANG SON HA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING BURNERS CHEMISTRY COMBUSTION APPARATUS COMBUSTION PROCESSES GLASS HEATING LIGHTING MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL MECHANICAL ENGINEERING METALLURGY METERING BY VOLUME MINERAL OR SLAG WOOL PHYSICS TESTING WEAPONS
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Beschreibung
Zusammenfassung:	A device for measuring the gas flow rate in a pipe supplying at least one burner comprises (a) a calibrated orifice in the gas supply pipe and (b) a device for determining the gas pressure in the tubing upstream of the orifice (a). An independent claim is included for a pressure measuring method using the device, involving (i) determining the gas pressure (P) in the tubing upstream of the calibrated orifice and (ii) calculating the gas flow (D) crossing the orifice from the equation K = k.S.P (where k is a constant defined as a function of the nature of the gas; and S is the surface of the orifice hole). L'invention concerne un dispositif de mesure du débit d'un gaz dans la conduite d'alimentation d'un brûleur par ledit gaz comprenant :- un orifice calibré placé dans la conduite d'alimentation en gaz,- un moyen de mesure de la pression dudit gaz dans la canalisation en amont de l'orifice calibré.